<template>
  <div class="dashboard-container">
    <!-- <div id="myChartChina" :style="{width: '100%', height: '600px'}" /> -->
  </div>
</template>

<script>
import { mapGetters } from 'vuex'
// import echarts from 'echarts'
export default {
  name: 'VueEcharts',
  data() {
    return {
      echarsDate: [],
      echarsData: [Math.random() * 150]
    }
  },
  computed: {
    ...mapGetters([
      'name'
    ])
  },
  mounted() {
    // this.drawLine()
  },
  methods: {
    drawLine() {
      // 基于准备好的dom，初始化echarts实例
      var myChartContainer = document.getElementById('myChartChina')
      const myChart = this.$echarts.init(myChartContainer)
      var chinaGeoCoordMap = {
        '黑龙江': [127.9688, 45.368],
        '内蒙古': [110.3467, 41.4899],
        '吉林': [125.8154, 44.2584],
        '北京市': [116.4551, 40.2539],
        '辽宁': [123.1238, 42.1216],
        '河北': [114.4995, 38.1006],
        '天津': [117.4219, 39.4189],
        '山西': [112.3352, 37.9413],
        '陕西': [109.1162, 34.2004],
        '甘肃': [103.5901, 36.3043],
        '宁夏': [106.3586, 38.1775],
        '青海': [101.4038, 36.8207],
        '新疆': [87.9236, 43.5883],
        '西藏': [91.11, 29.97],
        '四川': [103.9526, 30.7617],
        '重庆': [108.384366, 30.439702],
        '山东': [117.1582, 36.8701],
        '河南': [113.4668, 34.6234],
        '江苏': [118.8062, 31.9208],
        '安徽': [117.29, 32.0581],
        '湖北': [114.3896, 30.6628],
        '浙江': [119.5313, 29.8773],
        '福建': [119.4543, 25.9222],
        '江西': [116.0046, 28.6633],
        '湖南': [113.0823, 28.2568],
        '贵州': [106.6992, 26.7682],
        '云南': [102.9199, 25.4663],
        '广东': [113.12244, 23.009505],
        '广西': [108.479, 23.1152],
        '海南': [110.3893, 19.8516],
        '上海': [121.4648, 31.2891]
      }
      var chinaDatas = [
        [{
          name: '黑龙江',
          value: 0
        }],	[{
          name: '内蒙古',
          value: 0
        }],	[{
          name: '吉林',
          value: 0
        }],	[{
          name: '辽宁',
          value: 0
        }],	[{
          name: '河北',
          value: 0
        }],	[{
          name: '天津',
          value: 0
        }],	[{
          name: '山西',
          value: 0
        }],	[{
          name: '陕西',
          value: 0
        }],	[{
          name: '甘肃',
          value: 0
        }],	[{
          name: '宁夏',
          value: 0
        }],	[{
          name: '青海',
          value: 0
        }],	[{
          name: '新疆',
          value: 0
        }], [{
          name: '西藏',
          value: 0
        }],	[{
          name: '四川',
          value: 0
        }],	[{
          name: '重庆',
          value: 0
        }],	[{
          name: '山东',
          value: 0
        }],	[{
          name: '河南',
          value: 0
        }],	[{
          name: '江苏',
          value: 0
        }],	[{
          name: '安徽',
          value: 0
        }],	[{
          name: '湖北',
          value: 0
        }],	[{
          name: '浙江',
          value: 0
        }],	[{
          name: '福建',
          value: 0
        }],	[{
          name: '江西',
          value: 0
        }],	[{
          name: '湖南',
          value: 0
        }],	[{
          name: '贵州',
          value: 0
        }], [{
          name: '广西',
          value: 0
        }],	[{
          name: '海南',
          value: 0
        }],	[{
          name: '上海',
          value: 1
        }]
      ]
      var convertData = function(data) {
        var res = []
        for (var i = 0; i < data.length; i++) {
          var dataItem = data[i]
          var fromCoord = chinaGeoCoordMap[dataItem[0].name]
          var toCoord = [116.4551, 40.2539]
          if (fromCoord && toCoord) {
            res.push([{
              coord: fromCoord,
              value: dataItem[0].value
            }, {
              coord: toCoord
            }])
          }
        }
        return res
      }
      var series = []
      const beijing = [['北京市', chinaDatas]]
      beijing.forEach(function(item, i) {
        console.log(item)
        series.push({
          type: 'lines',
          zlevel: 2,
          effect: {
            show: true,
            period: 4, // 箭头指向速度，值越小速度越快
            trailLength: 0.02, // 特效尾迹长度[0,1]值越大，尾迹越长重
            symbol: 'arrow', // 箭头图标
            symbolSize: 5 // 图标大小
          },
          lineStyle: {
            normal: {
              width: 1, // 尾迹线条宽度
              opacity: 1, // 尾迹线条透明度
              curveness: 0.3 // 尾迹线条曲直度
            }
          },
          data: convertData(item[1])
        }, {
          type: 'effectScatter',
          coordinateSystem: 'geo',
          zlevel: 2,
          rippleEffect: { // 涟漪特效
            period: 4, // 动画时间，值越小速度越快
            brushType: 'stroke', // 波纹绘制方式 stroke, fill
            scale: 4 // 波纹圆环最大限制，值越大波纹越大
          },
          label: {
            normal: {
              show: true,
              position: 'right', // 显示位置
              offset: [5, 0], // 偏移设置
              formatter: function(params) { // 圆环显示文字
                return params.data.name
              },
              fontSize: 13
            },
            emphasis: {
              show: true
            }
          },
          symbol: 'circle',
          symbolSize: function(val) {
            return 5 + val[2] * 5 // 圆环大小
          },
          itemStyle: {
            normal: {
              show: false,
              color: '#f00'
            }
          },
          data: item[1].map(function(dataItem) {
            return {
              name: dataItem[0].name,
              value: chinaGeoCoordMap[dataItem[0].name].concat([dataItem[0].value])
            }
          })
        },
        // 被攻击点
        {
          type: 'scatter',
          coordinateSystem: 'geo',
          zlevel: 2,
          rippleEffect: {
            period: 4,
            brushType: 'stroke',
            scale: 4
          },
          label: {
            normal: {
              show: true,
              position: 'right',
              // offset:[5, 0],
              color: '#0f0',
              formatter: '{b}',
              textStyle: {
                color: '#0f0'
              }
            },
            emphasis: {
              show: true,
              color: '#f60'
            }
          },
          symbol: 'pin',
          symbolSize: 50,
          data: [{
            name: item[0],
            value: chinaGeoCoordMap[item[0]].concat([10])
          }]
        }
        )
      })
      myChart.setOption({
        tooltip: {
          trigger: 'item',
          backgroundColor: 'rgba(166, 200, 76, 0.82)',
          borderColor: '#FFFFCC',
          showDelay: 0,
          hideDelay: 0,
          enterable: true,
          transitionDuration: 0,
          extraCssText: 'z-index:100',
          formatter: function(params, ticket, callback) {
            // 根据业务自己拓展要显示的内容
            var res = ''
            var name = params.name
            var value = params.value[params.seriesIndex + 1]
            res = "<span style='color:#fff;'>" + name + '</span><br/>数据：' + value
            return res
          }
        },
        backgroundColor: '#013954',
        visualMap: { // 图例值控制
          min: 0,
          max: 1,
          calculable: true,
          show: true,
          color: ['#f44336', '#fc9700', '#ffde00', '#ffde00', '#00eaff'],
          textStyle: {
            color: '#fff'
          }
        },
        geo: {
          map: 'china',
          zoom: 1.2,
          label: {
            emphasis: {
              show: false
            }
          },
          roam: true, // 是否允许缩放
          itemStyle: {
            normal: {
              color: 'rgba(51, 69, 89, .5)', // 地图背景色
              borderColor: '#516a89', // 省市边界线00fcff 516a89
              borderWidth: 1
            },
            emphasis: {
              color: 'rgba(37, 43, 61, .5)' // 悬浮背景
            }
          }
        },
        series: series
      })
    }
  }
}
</script>

<style lang="scss" scoped>
.dashboard {
  &-container {
    margin: 30px;
  }
  &-text {
    font-size: 30px;
    line-height: 46px;
  }
}
</style>
